/*
 * The MIT License
 *
 *   Copyright (c) 2021, Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
 *
 *   Permission is hereby granted, free of charge, to any person obtaining a copy
 *   of this software and associated documentation files (the "Software"), to deal
 *   in the Software without restriction, including without limitation the rights
 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *   copies of the Software, and to permit persons to whom the Software is
 *   furnished to do so, subject to the following conditions:
 *
 *   The above copyright notice and this permission notice shall be included in
 *   all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *   THE SOFTWARE.
 */
package org.jeasy.batch.extensions.integration;

import java.util.Objects;

import org.jeasy.batch.core.record.Record;

/**
 * A default predicate used to put records in the default queue when building a
 * {@link ContentBasedBlockingQueueRecordWriter}.
 *
 * @author Mahmoud Ben Hassine (mahmoud.benhassine@icloud.com)
 * @param <P> type of the record's payload
 */
public class DefaultPredicate<P> implements Predicate<P> {

    /*
     * needed for equals and hashcode, all instances should be equal to be able to get the default queue
     * by calling queueMap.get(new DefaultPredicate()).put(record); in ContentBasedBlockingQueueRecordWriter#writeRecords
     */
    private String id = "defaultPredicate";

    @Override
    public boolean matches(Record<P> record) {
        return true;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof DefaultPredicate)) {
            return false;
        }

        DefaultPredicate<?> that = (DefaultPredicate<?>) o;

        return Objects.equals(id, that.id);
    }

    @Override
    public int hashCode() {
        return id != null ? id.hashCode() : 0;
    }

}
